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harina [27]
3 years ago
15

5. An object is accelerating at 10 m/s2. If the mass is doubled, what

Mathematics
1 answer:
drek231 [11]3 years ago
8 0

Answer:

20

If the net force on an object is doubled, its acceleration will double If the mass of an object is doubled, the acceleration will be halved.

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Solve the following by factoring 4x² + 12 =7x
LiRa [457]

Answer:

4x² + 12 = 7x

4x² + 12 - 7x = 0

use the quadratic formula and get your answer!

Step-by-step explanation:

3 0
3 years ago
A nationwide survey claimed that at least 65% of parents with young children condone spanking their child as a regular form of p
liq [111]

Answer:

here p=0.65 and n=100 hence standard error =(p*(1-.

Step-by-step explanation:

4 0
3 years ago
Is this ordered pair a solution to the inequality?<br> (1, 3)<br> 5x+y&lt;-3<br> A.)No<br> B.)Yes
max2010maxim [7]
(1,3) means that x = 1 and y = 3. Let's make substitutions to see what happens with the inequality

5*x + y < -3
5*1 + y < -3 ... replace x with 1
5*1 + 3 < -3 ... replace y with 3
5 + 3 < -3
8 < -3

This is false. The number 8 is NOT smaller than -3. 

So (1,3) is NOT a solution

Answer: Choice A) No
3 0
4 years ago
Find the area of a square with a perimeter of 45cm
Stolb23 [73]

Answer:

the area for the square is 126.56cm²:

8 0
3 years ago
On a farm there are three-legged-cows and chickens. There are total of 127 heads and 353 legs. How many three-legged-cows are on
olga nikolaevna [1]

Answer: There are 99 three-legged-cows  and 28 chickens.

Step-by-step explanation:

Let x be the number of three-legged-cows and y be the number of chickens.

Number of legs in chicken = 2

The according to the question, we have the following equations :-

\text{For heads }x+y=127------(1)\\\\\text{For legs }3x+2y=353------(2)

Multiplying 2 to the equation (1), we get

2x+2y=254--------(3)

Now, subtract equation (3) from (2), we get

x=353-254=99

Put x= 99 in (1), we get

99+y=127\\\\\Rightarrow\ y=127-99=28

Hence, there are 99 three-legged-cows  and 28 chickens.

6 0
3 years ago
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